Question

Dr. ilvento uses a smart phone app to track the distance he walks. while taking the same walk each time, he noticed the distance stated in the app varied a lot. so he began to record the distance in an experiment. he also recorded the distance in a car and found it to be consistently 2.4 miles. the data and some summary information are given below. assume this comes from a normal distribution. this is a small sample mean problem.

Answer 1

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